690462873 has 14 divisors (see below), whose sum is σ = 1035221834. Its totient is φ = 460308096.

The previous prime is 690462863. The next prime is 690462881. The reversal of 690462873 is 378264096.

It can be written as a sum of positive squares in only one way, i.e., 576144009 + 114318864 = 24003^2 + 10692^2 .

It is not a de Polignac number, because 690462873 - 2⁵ = 690462841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (690462823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 472840 + ... + 474297.

Almost surely, 2^690462873 is an apocalyptic number.

It is an amenable number.

690462873 is a deficient number, since it is larger than the sum of its proper divisors (344758961).

690462873 is an frugal number, since it uses more digits than its factorization.

690462873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947155 (or 947140 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 690462873 is about 26276.6602329900. The cubic root of 690462873 is about 883.8531424278.

The spelling of 690462873 in words is "six hundred ninety million, four hundred sixty-two thousand, eight hundred seventy-three".